Surface modification: design and implementation of organic shell on core for example magnetite nanoparticles by adsorption of surfactants, polyacids, natural and synthetised polyelectrolytes/polymers to stabilize and functionalize them for further functionalization (e.g. by anti-body).

How to prevent the aggregation? Coating particles with any adsorption layer (ions, surfactant, macromolecules)

--> enhanced resistance against adhesion of particles